package com.youbo.cloudmall.product.service.impl;

import com.alibaba.fastjson.TypeReference;

import com.youbo.cloudmall.product.entity.*;
import com.youbo.cloudmall.product.feign.CouponFeignService;
import com.youbo.cloudmall.product.feign.SearchFeignService;
import com.youbo.cloudmall.product.feign.WareFeignService;
import com.youbo.cloudmall.product.service.*;
import com.youbo.cloudmall.product.vo.*;
import com.youbo.common.constant.ProductConstant;
import com.youbo.common.to.SkuReductionTo;
import com.youbo.common.to.SpuBoundTo;
import com.youbo.common.to.es.SkuEsModel;
import com.youbo.common.utils.R;
import com.youbo.common.vo.SkuHasStockVo;
import org.apache.commons.lang3.StringUtils;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.math.BigDecimal;
import java.util.*;
import java.util.stream.Collectors;

import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.youbo.common.utils.PageUtils;
import com.youbo.common.utils.Query;

import com.youbo.cloudmall.product.dao.SpuInfoDao;
import org.springframework.transaction.annotation.Transactional;


@Service("spuInfoService")
public class SpuInfoServiceImpl extends ServiceImpl<SpuInfoDao, SpuInfoEntity> implements SpuInfoService {

    @Autowired
    private SpuInfoDescService spuInfoDescService;

    @Autowired
    private SpuImagesService spuImagesService;

    @Autowired
    private AttrService attrService;

    @Autowired
    private ProductAttrValueService attrValueService;

    @Autowired
    private SkuInfoService skuInfoService;

    @Autowired
    private SkuImagesService skuImagesService;

    @Autowired
    private SkuSaleAttrValueService skuSaleAttrValueService;


    @Autowired
    private CouponFeignService couponFeignService;

    @Autowired
    private BrandService brandService;

    @Autowired
    private CategoryService categoryService;

    @Autowired
    private WareFeignService wareFeignService;

    @Autowired
    private SearchFeignService searchFeignService;

    @Override
    public PageUtils queryPage(Map<String, Object> params) {
        IPage<SpuInfoEntity> page = this.page(
                new Query<SpuInfoEntity>().getPage(params),
                new QueryWrapper<SpuInfoEntity>()
        );

        return new PageUtils(page);
    }

    @Override
    @Transactional
    public void saveSpuInfo(SpuSaveVo vo) {
        //保存SPU基本信息
        SpuInfoEntity spuInfoEntity = new SpuInfoEntity();
        BeanUtils.copyProperties(vo,spuInfoEntity);
        spuInfoEntity.setCreateTime(new Date());
        spuInfoEntity.setUpdateTime(new Date());
        this.saveBaseSpuInfo(spuInfoEntity);
        //保存SPU描述图片
        List<String> decript = vo.getDecript();
        SpuInfoDescEntity descEntity = new SpuInfoDescEntity();
        descEntity.setSpuId(spuInfoEntity.getId());
        descEntity.setDecript(String.join(",",decript));
        spuInfoDescService.saveSpuInfoDesc(descEntity);
        //保存SPU图片集
        List<String> images = vo.getImages();
        spuImagesService.saveImages(spuInfoEntity.getId(),images);
        //保存SPU规格参数
        List<BaseAttrs> baseAttrs = vo.getBaseAttrs();
        List<ProductAttrValueEntity> collect = baseAttrs.stream().map(attr -> {
            ProductAttrValueEntity valueEntity = new ProductAttrValueEntity();
            valueEntity.setAttrId(attr.getAttrId());
            AttrEntity attrEntity = attrService.getById(attr.getAttrId());
            valueEntity.setAttrName(attrEntity.getAttrName());
            valueEntity.setAttrValue(attr.getAttrValues());
            valueEntity.setQuickShow(attr.getShowDesc());
            valueEntity.setSpuId(spuInfoEntity.getId());
            return valueEntity;
        }).collect(Collectors.toList());
        attrValueService.saveProductAttr(collect);
        //保存spu积分信息
        Bounds bounds = vo.getBounds();
        SpuBoundTo spuBoundTo = new SpuBoundTo();
        BeanUtils.copyProperties(bounds,spuBoundTo);
        spuBoundTo.setSpuId(spuInfoEntity.getId());
        R r = couponFeignService.saveSpuBounds(spuBoundTo);
        if (r.getCode() != 0) {
            log.error("远程保存spu积分信息失败！");
        }
        //保存SPU对应的SKU信息
        //1) sku基本信息
        List<Skus> skus = vo.getSkus();
        if (skus != null && skus.size() > 0) {
            skus.forEach(item->{
                String defaultImg = "";
                for (Images img : item.getImages()) {
                    if (img.getDefaultImg() == 1){
                        defaultImg = img.getImgUrl();
                    }
                }
                SkuInfoEntity skuInfoEntity = new SkuInfoEntity();
                BeanUtils.copyProperties(item,skuInfoEntity);
                skuInfoEntity.setBrandId(spuInfoEntity.getBrandId());
                skuInfoEntity.setCatalogId(spuInfoEntity.getCatalogId());
                skuInfoEntity.setSaleCount(0L);
                skuInfoEntity.setSpuId(spuInfoEntity.getId());
                skuInfoEntity.setSkuDefaultImg(defaultImg);
                skuInfoService.saveSkuInfo(skuInfoEntity);
                Long skuId = skuInfoEntity.getSkuId();
                List<SkuImagesEntity> imagesEntities = item.getImages().stream().map(img -> {
                    SkuImagesEntity skuImagesEntity = new SkuImagesEntity();
                    skuImagesEntity.setSkuId(skuId);
                    skuImagesEntity.setImgUrl(img.getImgUrl());
                    skuImagesEntity.setDefaultImg(img.getDefaultImg());
                    return skuImagesEntity;
                }).filter(entity->{
                    return !StringUtils.isEmpty(entity.getImgUrl());
                }).collect(Collectors.toList());
                //2) sku的图片信息
                skuImagesService.saveBatch(imagesEntities);
                //3) sku的销售属性信息
                List<Attr> attr = item.getAttr();
                List<SkuSaleAttrValueEntity> skuSaleAttrValueEntities = attr.stream().map(a -> {
                    SkuSaleAttrValueEntity attrValueEntity = new SkuSaleAttrValueEntity();
                    BeanUtils.copyProperties(a, attrValueEntity);
                    attrValueEntity.setSkuId(skuId);
                    return attrValueEntity;
                }).collect(Collectors.toList());
                skuSaleAttrValueService.saveBatch(skuSaleAttrValueEntities);
                //4) sku的优惠满减等信息
                SkuReductionTo skuReductionTO = new SkuReductionTo();
                BeanUtils.copyProperties(item,skuReductionTO);
                skuReductionTO.setSkuId(skuId);
                if (skuReductionTO.getFullCount() > 0 || skuReductionTO.getFullPrice().compareTo(new BigDecimal("0")) == 1){
                    R r1 = couponFeignService.saveSkuReduction(skuReductionTO);
                    if (r1.getCode() != 0) {
                        log.error("远程保存sku信息失败！");
                    }
                }
            });
        }



    }

    @Override
    public void saveBaseSpuInfo(SpuInfoEntity spuInfoEntity) {
        this.baseMapper.insert(spuInfoEntity);
    }

    @Override
    public PageUtils queryPageByCondition(Map<String, Object> params) {
        QueryWrapper<SpuInfoEntity> wrapper = new QueryWrapper<>();
        String key = (String) params.get("key");
        if (!StringUtils.isEmpty(key)){
            wrapper.and((w)->{
                w.eq("id",key).or().like("spu_name",key);
            });
        }
        String status = (String) params.get("status");
        if (!StringUtils.isEmpty(status)){
            wrapper.eq("publish_status",status);
        }
        String brandId = (String) params.get("brandId");
        if (!StringUtils.isEmpty(brandId) && !"0".equalsIgnoreCase(brandId)){
            wrapper.eq("brand_id",brandId);
        }

        String catelogId = (String) params.get("catelogId");
        if (!StringUtils.isEmpty(catelogId) && !"0".equalsIgnoreCase(catelogId)){
            wrapper.eq("catalog_id",catelogId);
        }

        IPage<SpuInfoEntity> page = this.page(
                new Query<SpuInfoEntity>().getPage(params),
                wrapper
        );

        return new PageUtils(page);
    }

    @Override
    public void up(Long spuId) {
        //ArrayList<SkuEsModel> uoProducts = new ArrayList<>();

        //查出当前spuId对应的sku信息
        List<SkuInfoEntity> skus = skuInfoService.getSkusBySpuId(spuId);
        //取出skuId
        List<Long> skuIds = skus.stream().map(SkuInfoEntity::getSkuId).collect(Collectors.toList());
        //查询当前sku的所有可以用来检索的规格属性
        List<ProductAttrValueEntity> attrValueEntities = attrValueService.baseAttrListForSpu(spuId);

        //返回所有attrId
        List<Long> attrIds = attrValueEntities.stream().map(attr -> {
            return attr.getAttrId();
        }).collect(Collectors.toList());

        //根据attrIds查出检索属性，pms_attr表中，search_type为1表示可检索
        List<Long> searchAttrIds = attrService.selectSearchAttrIds(attrIds);

        //将查询出来的attr_id放到set集合中，用来判断attrValueEntities是否包含attrId
        Set<Long> idSet = new HashSet<>(searchAttrIds);
        List<SkuEsModel.Attrs> attrList = attrValueEntities.stream().filter(item -> {
            //过滤掉不包含在searchAttrIds集合中的元素
            return idSet.contains(item.getAttrId());
        }).map(item->{
            SkuEsModel.Attrs attrs = new SkuEsModel.Attrs();
            BeanUtils.copyProperties(item,attrs);
            return attrs;
        }).collect(Collectors.toList());

        //发送远程调用，库存系统中查询是否有库存
        Map<Long,Boolean> stockMap = null;
        try {
            R r = wareFeignService.getSkuHasStock(skuIds);
            TypeReference<List<SkuHasStockVo>> typeReference = new TypeReference<List<SkuHasStockVo>>() {
            };
            List<SkuHasStockVo> data = r.getData(typeReference);
            //System.out.println(data);
            stockMap = data.stream().collect(Collectors.toMap(SkuHasStockVo::getSkuId, item -> item.getHasStock()));
        }catch (Exception e) {
            log.error("库存服务异常，原因{}",e);
            e.printStackTrace();
        }
        //封装每个sku信息
        Map<Long, Boolean> finalStockMap = stockMap;
        List<SkuEsModel> upProducts = skus.stream().map(sku -> {
            SkuEsModel skuEsModel = new SkuEsModel();
            BeanUtils.copyProperties(sku, skuEsModel);
            skuEsModel.setSkuPrice(sku.getPrice());
            skuEsModel.setSkuImg(sku.getSkuDefaultImg());
            //设置attr
            skuEsModel.setAttrs(attrList);
            //设置是否有库存
            if (finalStockMap == null) skuEsModel.setHasStock(true);
            else skuEsModel.setHasStock(finalStockMap.get(sku.getSkuId()));
            //TODO 商品热度

            skuEsModel.setHotScore(0L);
            //设置品牌信息
            BrandEntity brand = brandService.getById(skuEsModel.getBrandId());
            if(brand != null) {
                skuEsModel.setBrandName(brand.getName());
                skuEsModel.setBrandImg(brand.getLogo());
            }
            //设置分类信息
            CategoryEntity category = categoryService.getById(skuEsModel.getCatalogId());
            if (category != null) skuEsModel.setCatalogName(category.getName());
            return skuEsModel;
        }).collect(Collectors.toList());

        //将数据发送给ES保存 ： cloudmall-search
        R r = searchFeignService.productStatusUp(upProducts);
        if (r.getCode() == 0) {
            //远程调用成功
            //TODO 修改SPU状态
            this.baseMapper.updateSpuStatus(spuId, ProductConstant.StatusEnum.UP_SPU.getCode());
        }else {
            //失败
            //TODO 重复调用？接口幂等性：重试机制。
        }

    }
}
